.learun-sidebar {
    user-select: none;
    position: fixed;
    left: 0;
    top: 0;
    width: 208px;
    height: 100%;
    z-index: 1025;
    box-shadow: 2px 0 8px 0 rgba(29, 35, 41, .05);
    display: flex;
    flex-direction: column;
    background-color: $color-type-black;


    &__menu {
        position: relative;
        height: 100%;
        width: 100%;
        overflow: auto;
        overflow: hidden auto;
        flex-grow: 10;
        transition: all .3s;
    }

    &__collapse {
        width: 100%;
        height: 40px;
        min-height: 40px;
        display: flex;
        justify-content: center;
        align-items: center;
        border-bottom: 1px solid $text-color;
        cursor: pointer;
        font-size: 20px;
        transition: font-size .15s cubic-bezier(.215, .61, .355, 1), margin .3s cubic-bezier(.645, .045, .355, 1);
        color: $heading-dark-color;
    }


    ::-webkit-scrollbar {
        /* 滚动条整体样式 */
        width: 8px;
        background: rgb(255, 255, 255, 0.1);
    }

    ::-webkit-scrollbar-thumb {
        /* 滚动条里的小方块 */
        border-radius: 0px;
        // background: rgb(255, 255, 255, 0.2);
        background: hsla(0, 0%, 100%, 0.1);
        height: 20px;
    }

    ::-webkit-scrollbar-track {
        /* 滚动条里面的轨道 */
        -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.1);
        border-radius: 0px;
        // background: rgb(255, 255, 255, 0.1);
    }
}



.learun-collapse {
    .learun-sidebar {
        width: $side-min-width;
    }
}